<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        .list {
            display: flex;
        }
    </style>
</head>

<body>
    <div class="list">

    </div>
    <button class="prev">上一页</button>
    <button class="next">下一页</button>
    <script src="./promise-ajax.js"></script>
</body>

</html>
<script>
    var page = 1
    //点击上一页，获取上一页的表情，渲染表情
    document.querySelector('.prev').onclick = function () {
        if (page > 1) {
            ajax('get', `https://yantianfeng.com/api/emotion`, { page: --page, count: 10 }).then((data) => {
                var str = data.emotions.map((item, index) => {
                    return `<div><img src="${item.url}"/><div>${item.title}</div></div>`

                }).join('')
                //渲染表情
                document.querySelector('.list').innerHTML = str
            })
        } else {
            document.querySelector('.prev').disabled = true
        }
    }
    //点击下一页，获取下一页的表情，渲染表情
    document.querySelector('.next').onclick = function () {
        if (page < 4) {
            ajax('get', `https://yantianfeng.com/api/emotion`, { page: ++page, count: 10 }).then((data) => {
                var str = data.emotions.map((item, index) => {
                    return `<div><img src="${item.url}"/><div>${item.title}</div></div>`

                }).join('')
                document.querySelector('.list').innerHTML = str
            })
        } else {
            document.querySelector('.next').disabled = true
        }
    }
</script>